update android sample and api docs to Android SDK 4.11.2.

Update sample to Android SDK 4.11.1.

update sample to Android SDK 4.11.

Update sample and documentation to Android SDK 4.10.

add live stream sample

update sample and documentation to Android SDK 4.9.

update sample to Android SDK 4.8.1.

update sample code and documentations to Android SDK 4.8.

update sample to Android SDK 4.7.1.

update sample and docs to Android SDK 4.7.